* This Stata 5.0 "do" file loads and labels data from *   Gallup, John Luke, Sachs, Jeffrey D., and Mellinger, Andrew D. 1999.*   "Geography and Economic Development," in Pleskovic, Boris, *   and Joseph E. Stiglitz, eds., World Bank Annual Conference on *   Development Economics 1998.  Washington: World Bank, pp. 127-128.*See Gallup, Sachs, and Mellinger, pp. 161-164 for more detailed *   explanation of vars*File will create a dataset of physical geography factors, *	consisting  of land area, elevation, latitude and longitude,*	mean distance to coast and rivers, *	distance from country centroids to coast and rivers,tropical land area, *	tropical population, population density, population in coastal areas*	and the typical density exprienced by a person, by country*Modified August 31, 2001insheet using physfact_rev.csv, names comma clearlabel var wbcode   "World Bank (ISO) 3-letter country code"label var country  "Country name"label var areakm2  "land area (km2)"label var cen_lat  "latitude of country centroid"label var cen_lon  "longitude of country centroid"label var elev     "mean m above sea level"label var distcr   "mean dist. to ice-free coast or river"label var distc    "mean dist. to ice-free to coast"label var distr    "mean distance to river"label var cen_c    "dist centroid to coast(km)"label var cen_cr   "dist centroid to coast/riv (km)"label var pop100km "pop<+100 km from coast/riv"label var pop100cr "pop<= 100 km from coast"label var troppop  "% pop in geographical tropics"label var pdenpavg "typical pop density experienced by a person (/km2)"label var tropicar "% land area in geographical tropics"sort wbcodesave physfact_rev, replace